49999999999998 has 32 divisors (see below), whose sum is σ = 102130560000000. Its totient is φ = 16311593475360.

The previous prime is 49999999999981. The next prime is 50000000000053. The reversal of 49999999999998 is 89999999999994.

It is a super-9 number, since 9×49999999999998⁹ (a number of 125 digits) contains 999999999 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7500003 + ... + 12500001.

It is an arithmetic number, because the mean of its divisors is an integer number (3191580000000).

Almost surely, 2^{49999999999998} is an apocalyptic number.

49999999999998 is an abundant number, since it is smaller than the sum of its proper divisors (52130560000002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49999999999998 is a wasteful number, since it uses less digits than its factorization.

49999999999998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5035512.

The product of its digits is 9037745167392, while the sum is 120.

The spelling of 49999999999998 in words is "forty-nine trillion, nine hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-eight".